[PLUG] Suggest a Certification

Hi All,
I am planning to do a certification, i have 3 courses in mind.
1. IBM-AIX
2. HP Unix
3. Solaris
Can you suggest me which course is better in terms of getting job in Pune?
My background is:
I have worked as system admin(Linux) & IT Operations manager so i have basic
idea about Unix & Solaris. I am active user of ubuntu for last 5 years.
Thanks in advance.
Regards,
Dnyanraj